-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

To ensure the image has not been corrupted in transmit or tampered with,
perform the following two steps to cryptographically verify image integrity:

1. Verify the authenticity of this file by checking that it is signed with our
   GPG release key:

    $ curl https://raw.githubusercontent.com/turnkeylinux/common/18.x/keys/tkl-bookworm-images.asc | gpg --import
    $ gpg --list-keys --with-fingerprint release-bookworm-images@turnkeylinux.org
      pub   rsa4096 2023-05-22 [SC] [expires: 2043-05-17]
            2614 7592 087C 0EDE 4214  3B63 7761 DEBA BBCF BA7C
      uid           [ unknown] TurnKey GNU/Linux Bookworm Images (GPG signing key for TurnKey Linux Bookworm Images) <release-bookworm-images@turnkeylinux.org>
      sub   rsa4096 2023-05-22 [S] [expires: 2043-05-17]
      
    $ gpg --verify turnkey-symfony-18.0-bookworm-amd64.iso.hash
      gpg: Signature made using RSA key ID 26147592087C0EDE42143B637761DEBABBCFBA7C
      gpg: Good signature from "0"

2. Recalculate the image hash and make sure it matches your choice of hash below.

    $ sha256sum turnkey-symfony-18.0-bookworm-amd64.iso
      6f090edae18c87f5613cea31057771fa6989c7b9d6c9b9807a3835df23e6d5e0  turnkey-symfony-18.0-bookworm-amd64.iso

    $ sha512sum turnkey-symfony-18.0-bookworm-amd64.iso
      f3917c5ad539c39f820c230da4062c1cf8fe340df54773a87ed2aa6b0c4404ce0360ac6ddf5c621f6ba1cc60f009d425209024ea0ee10cc12f2e5ecef3e414cf  turnkey-symfony-18.0-bookworm-amd64.iso

   Note, you can compare hashes automatically::

    $ sha256sum -c turnkey-symfony-18.0-bookworm-amd64.iso.hash
      turnkey-symfony-18.0-bookworm-amd64.iso: OK

    $ sha512sum -c turnkey-symfony-18.0-bookworm-amd64.iso.hash
      turnkey-symfony-18.0-bookworm-amd64.iso: OK

    Final note, when checking SHAs automatically, please ignore warning noting that some lines are improperly formatted.

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qyKwDtb6Vx5G4zFpdH4MSw+jN73WxF4BhuvfZCg3A72iaVdgTSB+QrW2DqR8sNbw
SSIrilir9HYwT+J7Psm16psbXqrpNSoQ0OpOHmgWSfdEsdhkGuA5uV467TZQ/8Ne
wjWiyh3SG5XgkRaXuDeYVgtGafL4xJBL2YzYo5520aXTGWXbH119ZMkbJyJUVxVR
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w+5e8VcBhrBAZ9YKmjXq8XcybJn69FC9aFEzAr9dK6TFn80dMGS0lnnFqbI5Tlg9
vo4wCrS07to55tQwQ9UkVflt0Xk/HBSgXcQ00op7bctsO31YjCd0iUuk9Lg6hESW
8/iay6oWe8eh7WCaEyv3zjUMdsnkyAer+tAwgH2L5viCpRbYMGM=
=3zrE
-----END PGP SIGNATURE-----